Home / 91,157.34-136,718.70-38,603.72

Finding the Fourth Proportional to 91,157.34, 136,718.70 and 38,603.72

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Solution

The fourth proportional to 91,157.34, 136,718.70 and 38,603.72 is: 57,898.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,157.34 : 136,718.70 = 38,603.72 : x
  2. Step 2: Convert to fraction form
    91,157.34/136,718.70 = 38,603.72/x
  3. Step 3: Cross multiply
    91,157.34x = 136,718.70 × 38,603.72
  4. Step 4: Simplify right side
    91,157.34x = 5,277,850,413.56
  5. Step 5: Solve for x
    x = 5,277,850,413.56/91,157.34
  6. Step 6: Final answer
    x = 57,898.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.